Granted Patent
Utility
US 4,581,632 · App. 06/699,938
Optical inspection apparatus for moving articles
Inventors:
Walter L. Davis, Dale Messenger, Malcolm W. Randall
Patented Case
View Patent ↗
Granted: Apr 8, 1986
Filed: Feb 8, 1985
Inventors
Walter L. Davis
Dale Messenger
Malcolm W. Randall
Assignee (at issue)
Key Technology, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.